Delphi 6 - 运行时读取控制台应用程序的输出 [英] Delphi 6 - read console app's output while running

问题描述

在运行控制台应用程序的输出时如何读取？我启动控制台应用程序，并希望读取由控制台应用程序打印的输出。

How do I read a console apps output as it is running. I start the console application and would like to read the output as it is printed by the console app.

推荐答案

a href =http://delphi.about.com/cs/adptips2001/a/bltip0201_2.htm =noreferrer>解决方案。

What about this solution.

编辑：链接导致此解决方案（轻轻地重构了易读性，并删除使用与）：

the link leads to this solution (lightly refactored for legibility and to remove use of with):

// The example runs 'chkdsk.exe c:\' and displays the output to Memo1.
// Put a TMemo (Memo1) and a TButton (Button1) on your form. Put this 
//   code in the OnCLick event procedure for Button1:

procedure TForm1.RunDosInMemo(DosApp:String;AMemo:TMemo) ;
const
  ReadBuffer = 2400;
var
  Security    : TSecurityAttributes;
  ReadPipe,
  WritePipe   : THandle;
  start       : TStartUpInfo;
  ProcessInfo : TProcessInformation;
  Buffer      : Pchar;
  BytesRead   : DWord;
  Apprunning  : DWord;

begin
  Security.nlength := SizeOf(TSecurityAttributes) ;
  Security.binherithandle := true;
  Security.lpsecuritydescriptor := nil;
  if Createpipe (ReadPipe, WritePipe, @Security, 0) then 
  begin
    Buffer := AllocMem(ReadBuffer + 1) ;
    FillChar(Start,Sizeof(Start),#0) ;
    start.cb := SizeOf(start) ;
    start.hStdOutput := WritePipe;
    start.hStdInput := ReadPipe;
    start.dwFlags := STARTF_USESTDHANDLES + STARTF_USESHOWWINDOW;
    start.wShowWindow := SW_HIDE;
    if CreateProcess(nil,
                     PChar(DosApp),
                     @Security,
                     @Security,
                     true,
                     NORMAL_PRIORITY_CLASS,
                     nil,
                     nil,
                     start,
                     ProcessInfo) then
    begin
      repeat
        Apprunning := WaitForSingleObject(ProcessInfo.hProcess,100);
        Application.ProcessMessages;
      until (Apprunning <> WAIT_TIMEOUT) ;
      repeat
        BytesRead := 0;
        ReadFile(ReadPipe,Buffer[0],
        ReadBuffer,BytesRead,nil) ;
        Buffer[BytesRead]:= #0;
        OemToAnsi(Buffer,Buffer) ;
        AMemo.Text := AMemo.text + String(Buffer) ;
      until (BytesRead < ReadBuffer) ;
    end;
    FreeMem(Buffer) ;
    CloseHandle(ProcessInfo.hProcess) ;
    CloseHandle(ProcessInfo.hThread) ;
    CloseHandle(ReadPipe) ;
    CloseHandle(WritePipe) ;
  end;
end;

procedure TForm1.Button1Click(Sender: TObject) ;
begin
  RunDosInMemo('chkdsk.exe c:\', Memo1) ;
end;

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